TY - JOUR ID - 72670 TI - Effects of Material and Geometrical Parameters on the Free Vibration of Sandwich Beams JO - International Journal of Engineering JA - IJE LA - en SN - 1025-2495 AU - Amrane, Mohamed Nadir AU - Bensahal, Djamel AD - Mechanic, Faculty of Technologyuniversity of Biskra, Algeria AD - Mechanic, Faculty of Technology, University of Laghouat, Algeria Y1 - 2016 PY - 2016 VL - 29 IS - 2 SP - 222 EP - 228 KW - length KW - Finite element method KW - Free vibration KW - Frequency KW - sandwich DO - N2 - The aim of present study is to investigate the effect of various parameters such as length, thickness, density, shear modulus of the core and Young modulus of skins for various boundary conditions:  clamped-free and simply supported. By applying the model of Khalili et al for frees vibration analysis of sandwich beams by using finite element methods. Where, the core density is taken on consideration. The flexural vibrations of beams are analyzed by the finite element method, using the stiffness and mass matrix of beam element with three degrees of freedom per node. The three first natural frequencies are calculated by using Matlab commercial software. A comparison is established between three different lengths for each configuration. There is a good agreement between the results obtained by the present study with the results obtained by Khalili et al. UR - https://www.ije.ir/article_72670.html L1 - https://www.ije.ir/article_72670_b3977844aeee658248f42531a6b442a5.pdf ER -